InteVision 400 Thread Count, 100% Egyptian Cotton Pillowcase; Replacement Cover Designed to Fit The Four Position Support Pillow (20.5" x 8" x 4.5") Made of 400 thread count, 100% Egyptian cotton sateen weave Designed to fit the InteVision Four Position Support Pillow (20.5" x 8" x 4.5") Easy to remove and clean Recommend washing before first use as it will shrink to the correct size for a better fit Every product comes with the trademark InteVision on its packaging.